DESIGN AND CONSTRUCTION OF PHASE II MONOCHROMATOR

该子项目是利用NIH/NCRR资助的中心赠款提供的资源的许多研究子项目之一。子项目和研究者（PI）可能从另一个NIH来源获得了主要资金，因此可以在其他CRISP条目中表示。所列机构为中心，不一定是研究者所在机构。外部参与者：Crystal Scientific，Ltd，Warwickshire，UK和Oxford Danfysik，Oxford UK。 我们已完成第二阶段单晶侧面反射单色器的建造及安装。第二阶段单色器由两个不同切割（220和311）的低温冷却晶体组成，可通过单个垂直平移进行选择。单色器被设计为提供12.6或14.8 KeV的单色光束，相对于入射光束具有29.65度的固定出射角。在我们的进度报告中，我们介绍了NE-CAT第二阶段光束线的初始性能测试和安装。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Outside Participants: Crystal Scientific, Ltd, Warwickshire, UK and Oxford Danfysik, Oxford UK. We have completed construction and installation of the Phase II single-crystal side-bounce monochromator. The Phase II monochromator consists of two cryogenically-cooled crystals of differing cuts (220 and 311), selectable by a single vertical translation. The monochromator is designed to provide a monochromatic beam at either 12.6 or 14.8 KeV with a fixed exit angle of 29.65 degrees relative to the incident beam. In our progress report, we present a description of initial performance testing and installation on the NE-CAT Phase II beam line.